mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-02 11:55:59 +01:00
f8a50e4fe7
This commit allows outputs that need a CRTC to steal it from user-disabled outputs. Note that in the case there are enough CRTCs, disabled outputs don't loose it (so there's no modeset and plane initialization needed after DPMS). CRTC allocation still prefers to keep the old configuration, even if that means allocating an extra CRTC to a disabled output. CRTC reallocation now happen when enabling/disabling an output as well as when trying to modeset. When enabling an output without a CRTC, we realloc to try to steal a CRTC from a disabled output (that doesn't really need the CRTC). When disabling an output, we try to give our CRTC to an output that needs one. Modesetting is similar to enabling. A new DRM connector field has been added: `desired_enabled`. Outputs without CRTCs get automatically disabled. This field keeps track of the state desired by the user, allowing to automatically re-enable outputs when a CRTC becomes free. This required some changes to the allocation algorithm. Previously, the algorithm tried to keep the previous configuration even if a new configuration with a better score was possible (it only changed configuration when the old one didn't work anymore). This is now changed and the old configuration (still preferred) is only retained without considering new possibilities when it's perfect (all outputs have CRTCs). User-disabled outputs now have `possible_crtcs` set to 0, meaning they can only retain a previous CRTC (not acquire a new one). The allocation algorithm has been updated to do not bump the score when assigning a CRTC to a disabled output.
149 lines
3 KiB
C
149 lines
3 KiB
C
#ifndef BACKEND_DRM_DRM_H
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#define BACKEND_DRM_DRM_H
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#include <EGL/egl.h>
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#include <gbm.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <wayland-server.h>
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#include <wayland-util.h>
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#include <wlr/backend/drm.h>
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#include <wlr/backend/session.h>
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#include <wlr/render/egl.h>
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#include <xf86drmMode.h>
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#include "iface.h"
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#include "properties.h"
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#include "renderer.h"
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struct wlr_drm_plane {
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uint32_t type;
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uint32_t id;
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uint32_t possible_crtcs;
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struct wlr_drm_surface surf;
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struct wlr_drm_surface mgpu_surf;
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// Only used by cursor
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float matrix[9];
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struct gbm_bo *cursor_bo;
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bool cursor_enabled;
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int32_t cursor_hotspot_x, cursor_hotspot_y;
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union wlr_drm_plane_props props;
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};
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struct wlr_drm_crtc {
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uint32_t id;
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// Atomic modesetting only
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uint32_t mode_id;
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uint32_t gamma_lut;
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drmModeAtomicReq *atomic;
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// Legacy only
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drmModeCrtc *legacy_crtc;
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union {
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struct {
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struct wlr_drm_plane *overlay;
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struct wlr_drm_plane *primary;
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struct wlr_drm_plane *cursor;
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};
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struct wlr_drm_plane *planes[3];
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};
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union wlr_drm_crtc_props props;
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struct wl_list connectors;
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};
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struct wlr_drm_backend {
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struct wlr_backend backend;
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struct wlr_drm_backend *parent;
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const struct wlr_drm_interface *iface;
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int fd;
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size_t num_crtcs;
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struct wlr_drm_crtc *crtcs;
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size_t num_planes;
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struct wlr_drm_plane *planes;
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union {
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struct {
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size_t num_overlay_planes;
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size_t num_primary_planes;
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size_t num_cursor_planes;
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};
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size_t num_type_planes[3];
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};
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union {
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struct {
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struct wlr_drm_plane *overlay_planes;
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struct wlr_drm_plane *primary_planes;
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struct wlr_drm_plane *cursor_planes;
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};
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struct wlr_drm_plane *type_planes[3];
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};
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struct wl_display *display;
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struct wl_event_source *drm_event;
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struct wl_listener display_destroy;
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struct wl_listener session_signal;
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struct wl_listener drm_invalidated;
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struct wl_list outputs;
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struct wlr_drm_renderer renderer;
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struct wlr_session *session;
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};
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enum wlr_drm_connector_state {
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WLR_DRM_CONN_DISCONNECTED,
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WLR_DRM_CONN_NEEDS_MODESET,
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WLR_DRM_CONN_CLEANUP,
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WLR_DRM_CONN_CONNECTED,
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};
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struct wlr_drm_mode {
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struct wlr_output_mode wlr_mode;
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drmModeModeInfo drm_mode;
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};
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struct wlr_drm_connector {
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struct wlr_output output;
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enum wlr_drm_connector_state state;
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struct wlr_output_mode *desired_mode;
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bool desired_enabled;
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uint32_t id;
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struct wlr_drm_crtc *crtc;
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uint32_t possible_crtc;
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union wlr_drm_connector_props props;
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uint32_t width, height;
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int32_t cursor_x, cursor_y;
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drmModeCrtc *old_crtc;
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bool pageflip_pending;
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struct wl_event_source *retry_pageflip;
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struct wl_list link;
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};
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bool check_drm_features(struct wlr_drm_backend *drm);
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bool init_drm_resources(struct wlr_drm_backend *drm);
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void finish_drm_resources(struct wlr_drm_backend *drm);
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void restore_drm_outputs(struct wlr_drm_backend *drm);
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void scan_drm_connectors(struct wlr_drm_backend *state);
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int handle_drm_event(int fd, uint32_t mask, void *data);
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bool enable_drm_connector(struct wlr_output *output, bool enable);
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#endif
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